diff --git a/indra/newview/app_settings/high_graphics.xml b/indra/newview/app_settings/high_graphics.xml
index 5bc2e1b7e64f2cbed20033ab50f3d7fc6eea426a..37def19aaa0be0cafbb314d94740cd0419da21e1 100755
--- a/indra/newview/app_settings/high_graphics.xml
+++ b/indra/newview/app_settings/high_graphics.xml
@@ -26,8 +26,11 @@
 	<RenderTerrainLODFactor value="2"/>
 	<!--Default for now-->
 	<RenderTreeLODFactor value="0.5"/>
-	<!--Try Impostors-->
+	<!--Avater Impostors and Visual Muting Limits-->
 	<RenderUseImpostors value="TRUE"/>
+    <RenderAvatarMaxVisible          value="20"/>
+    <RenderAutoMuteRenderWeightLimit value="350000"/>
+    <RenderAutoMuteSurfaceAreaLimit  value="300"/>
 	<!--Default for now-->
 	<RenderVolumeLODFactor value="1.125"/>
 	<!--NO SHADERS-->
diff --git a/indra/newview/app_settings/low_graphics.xml b/indra/newview/app_settings/low_graphics.xml
index ca1dae0b86d4a97030806a6deebbafbc3877bd70..683c2bd996f4c39fe6959d50267118a9459a0e2b 100755
--- a/indra/newview/app_settings/low_graphics.xml
+++ b/indra/newview/app_settings/low_graphics.xml
@@ -28,8 +28,11 @@
 	<RenderTerrainLODFactor value="1.0"/>
 	<!--Default for now-->
 	<RenderTreeLODFactor value="0.5"/>
-	<!--Try Impostors-->
+	<!--Avater Impostors and Visual Muting Limits-->
 	<RenderUseImpostors value="TRUE"/>
+    <RenderAvatarMaxVisible          value="12"/>
+    <RenderAutoMuteRenderWeightLimit value="75000"/>
+    <RenderAutoMuteSurfaceAreaLimit  value="150"/>
 	<!--Default for now-->
 	<RenderVolumeLODFactor value="1.125"/>
 	<!--NO SHADERS-->
diff --git a/indra/newview/app_settings/mid_graphics.xml b/indra/newview/app_settings/mid_graphics.xml
index 01822fe64c9828db0af9e1b2517a0471dc0337e6..f9b199c7287ef47ba27344a23f1de46fc281012b 100755
--- a/indra/newview/app_settings/mid_graphics.xml
+++ b/indra/newview/app_settings/mid_graphics.xml
@@ -26,8 +26,11 @@
 	<RenderTerrainLODFactor value="1.0"/>
 	<!--Default for now-->
 	<RenderTreeLODFactor value="0.5"/>
-	<!--Try Impostors-->
+	<!--Avater Impostors and Visual Muting Limits-->
 	<RenderUseImpostors value="TRUE"/>
+    <RenderAvatarMaxVisible          value="18"/>
+    <RenderAutoMuteRenderWeightLimit value="100000"/>
+    <RenderAutoMuteSurfaceAreaLimit  value="200"/>
 	<!--Default for now-->
 	<RenderVolumeLODFactor value="1.125"/>
 	<!--NO SHADERS-->
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 276a65edc5c0c7a66c67aa0bfde49e95d06ff5b7..b78cb01d8546dd741465621bfc3dd93abec21e12 100755
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -8298,7 +8298,9 @@
     <key>RenderAvatarMaxVisible</key>
     <map>
       <key>Comment</key>
-      <string>Maximum number of avatars to display at any one time</string>
+      <string>Maximum number of avatars to fully render at one time;
+      over this limit uses impostor rendering (simplified rendering
+      with less frequent updates)</string>
       <key>Persist</key>
       <integer>1</integer>
       <key>Type</key>
@@ -9887,7 +9889,7 @@
     <key>Type</key>
     <string>U32</string>
     <key>Value</key>
-    <integer>0</integer>
+    <integer>10000000</integer>
   </map>
   <key>RenderAutoMuteRenderWeightLimit</key>
   <map>
@@ -9931,7 +9933,7 @@
     <key>Type</key>
     <string>F32</string>
     <key>Value</key>
-    <integer>0</integer>
+    <real>1.0E6</real>
   </map>
 
     <key>RenderVBOEnable</key>
diff --git a/indra/newview/app_settings/ultra_graphics.xml b/indra/newview/app_settings/ultra_graphics.xml
index 71459e5470a6dddecbcaba616db74b87aebd2340..dcf63eced5f40f5890bd1a5ba8c4a03fd74a1cc6 100755
--- a/indra/newview/app_settings/ultra_graphics.xml
+++ b/indra/newview/app_settings/ultra_graphics.xml
@@ -26,8 +26,11 @@
 	<RenderTerrainLODFactor value="2.0"/>
 	<!--Default for now-->
 	<RenderTreeLODFactor value="1.0"/>
-	<!--Try Impostors-->
+	<!--Avater Impostors and Visual Muting Limits-->
 	<RenderUseImpostors value="TRUE"/>
+    <RenderAvatarMaxVisible          value="0"/>
+    <RenderAutoMuteRenderWeightLimit value="0"/>
+    <RenderAutoMuteSurfaceAreaLimit  value="10000"/>
 	<!--Default for now-->
 	<RenderVolumeLODFactor value="2.0"/>
 	<!--NO SHADERS-->